Add-ons
An add-on is an optional extra a client ticks on top of the session: an extra hour, a second photographer, prints, rush delivery, travel outside your usual area.
Add-ons are where a lot of quiet revenue sits, because a client already committed to booking will often take an extra they'd never have asked for unprompted.
Which services have them
Direct booking and mini sessions. The Add-ons section sits on the Price & duration tab, or Price & slot on mini sessions.
Inquiry services don't have add-ons. Nothing is being priced at the point of inquiring. Extras belong in the proposal you build afterwards, alongside the rest of the quote. Your reusable extras live in Items, which is what a proposal draws from.
Building one
Click Add add-on and fill in:
Add-on name. What the client sees, like "Second shooter".
Price per unit. What one of them costs.
Description (optional). Shown to the client behind a small information icon next to the name.
Tax. Its own tax rate. The field appears only once Collect payment is on for the service.
Let clients choose quantity. Off means the client can take one or none. On lets them take several, and reveals Maximum per booking (optional). That field caps how many. Leave it blank for no limit.
Drag the handle to reorder them, or use Move up and Move down in the three-dot menu. The order you set is the order clients see. You can have up to 30 on one service.
What the client sees
Add-ons appear on the first step of the booking flow, under a heading Add-ons, right below the times. There's no separate add-on screen later.
Each one is a row: the name, the unit price underneath, and a minus / number / plus stepper on the right. The running line total sits beside it. Every add-on starts at zero, and one without quantity selection simply stops at one. A description shows behind a small information icon beside the name.
The total updates as they change it, and the summary beside the flow lists what they've picked. One add-on gets its own line under Add-ons. Several collapse into a single Add-ons (3) row with the total, which expands to show them.
Keep the list short
A page of fifteen optional extras stalls the decision you actually want them to make. Three or four that genuinely sell is better than a catalogue.
Write descriptions in terms of what the client gets rather than what you do. "Forty edited photographs and a printed album" tells them more than "extended coverage and post-production".